I currently am only experiencing this on 0.48 Ubuntu 10.10 64bit:
Whenever I move the mouse cursor across the horizontal or vertical rulers, the rulers fill with the ruler point (triangle) artifacts. I've posted a screenshot here:
http://img257.imageshack.us/img257/3473/screenshotinkscape1.png
Same machine (laptop) running 0.48 in WinXP (at the same time) on a VMWare virtual machine does not experience the same. Screenshot here:
http://img526.imageshack.us/img526/8378/inkscape2winxp.png
Nor do I experience this on my Ubuntu 10.4 32bit machine with 0.48.
Can anyone verify that the same is occurring on their 10.10 64bit Inkscape 0.48, or please point me to an already filed bug? If a bug is not filed, I'll be happy to do so if I can verify that someone else has the same issue.
Thanks.
Gary Lee